Tire rim for use on autotrucks and other vehicles



T. W. COSTELLO. TIRE RIM FOR USE ON AUTOTRUCKS AND OTHER VEHICLES. APPLICATION HLED JULY 24,1919- 1,410,892. Patented Mar. 2 1922.

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mamas h IV/Ikm floslel/o THOMAS WILLI M COSTELLO,

or sari raanorsco. carersonnralv TIRE RIM FOR USE ON .AU'IOTRUGKS AND OTHER vnnrcans.

Application filed July 24',

To all whom it may concern:

Be it known that I, THOMAS WILLIAM CosTnLLo, a citizen of the United States, and a resident of the city of San Francisco, n the State of California, United States of America, have invented certain new and use ful Improvements in Tire Rims for Use on Autotrucks and other Vehicles, of which the following is a specification.

This invention relates to improvements in that type of metal wheel rims generally known as clincher rims used on auto-trucks or other vehicles of like character which are equipped with clincher tires made of rubber and cord or fabric tire casings containing fillers such as elastic sponge rubber or the like. This invention essentially consists of a combination of (1) wheel felly, (2) of en circling band therefor on which the tire. is seated, and (3) of removable clinch rim members extending around the fellyon each side thereof, said members being detachably connected one to the other by the co-operation of internally threaded steel bushings and of externally threaded screw bolts.

The object of my invention is to provide a simple and effective means the use of which enables such time containing rubber fillers or the like to be put in place very easily and ex I peditiously by the application of equal pressure and leverage all round the metal rim. In effect, the object is to provide a separable clincher rim which allows the rubber and cord or fabric tire casing with its filler to be assembled thereon through the principle of external contraction, or removed therefrom with greater ease and convenience and in less time than is possible with the methods in present use.

I- attain this object by the construction illustrated in the accompanying drawings in which- Fig. 1 is a fragmentary perspective view showing the practical application of the in vention.

Fig. 2 is a view to a reduced scale of an auto-truck wheel with which the invention is embodied.

Similar figures of reference indicate similar parts throughout the views.

1 indicates the wooden felly of an auto truck wheel, girdled with the metal band 2, these parts being similar to those found in auto-trucks at the present time. 3 and 4 indicate plates adapted to lie on the sides of the wood felly and extending around the Specification of Letters Patent.

1919. Serial NO. 313,048. 7

same on each side of it, the upper ends of the plates extendlng above the metal band 2 and being of clinch formation, as indicated at 5' and 6 from which it'will be seen that a clincher rim is formed consisting of the metal band 2 and the side clinch members 5 and 6, which members 5 and 6 are held rigldly together by screws 7 threaded into internally threaded steel bushings 10 passed through the plates 3 and 4 and through the wood felly l as well, these bushings being spaced equidistant around the felly and provided with a snap head 11 and being squared adjacent their heads as at 12 to keep them from revolving when in place and the screws 7 are beingtightened up. In other words, a separable clincher rim is formed the clinches of which are detachable and may beseparated one from the other when re quired.

8 indicates the tire casing filled,as indicated, with an elastic sponge rubber core 9. h manner in which the invention is used be ObV1OH S,- on reference being had to will be, when the casing may be readily pulled off. The replacing of the casing and filler is effected with equal facility, as, the side plate belng off, the casing and filler are easily placed around the band 2, being then, of course, in an expanded condition, when by replacing the side plate and tightening up the screws 7 equally all round so as to exert an equal pressure acting externally on the tire casing head, the same is pressed into place and securely held in the clinches 5 and 6. i

It will thus be seen that I have devised a separable clincher rim for use on wheels of auto-trucks and vehicles of like character which is of great convenience and utility, and. is particularly adapted to the specific purpose of mounting and demounting tire casings containing elastic sponge rubber fillers or the like, which said tires require to be mounted on rims under lateral pressure through force exerted under the principle of external contraction.

What I claim as my invention is In a pressure rim for vehicle wheels, the.

combination with a wheel felly, of a pair of clamping rings extending around the felly on opposite sides thereof and adapted to en- Patented M 211228, 1922. I

gage and force together the beads of a tire casing mounted on the telly between the squared to hold the bushings from rotatin 10 rings, and means for forcing said rings toand a plurality of bolts adapted to be threadgether including a plurality of hollow edly engaged in said bushings for-clamping v internally threaded bushings extending engagement with the opposite ring, said 5 through the Wheel felly and through both bolts having headed ends bearing against of said rings and provided at one end the last-mentioned rings. 15 with headsadapted for clamping engage Dated at San Francisco, California, this ment with one of the rings, the portion of 17th day of June, 1919. A the bushings adjacent said heads being THOMAS WILLIAM COSTELLO. 

